JPH06211048A - Door structure for cabin - Google Patents

Abstract

PURPOSE:To reduce the adhesion of dirt by disposing a pivotally supporting means more on the inner side than the outer face of a cabin, fitting a door glass into a fitting recessed part formed at the inner periphery of a door frame, and forming the outer face of the door glass into the face almost continuous with the outer face of the door frame. CONSTITUTION:The outer face side of the inner peripheral part of a door frame 2 is fitted being recessed in angular shape so as to form a recessed part 8, and a door glass 3 is rigidly fixed into this fitting recessed part 8 through adhesive 30. Black masking is applied to the inner face side of the overlapped part of the door glass 3 with the door frame 2. The depth of the fitting recessed part 8 is to be slightly larger than the thickness of the door glass 3, and the outer face of the door glass 3 in the interposed state of the adhesive 30 is approximately continuous with the outer face of the door frame 2. The adhesion of dirt is thereby reduced, and external appearance can be made desirable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door structure that can be used for cabins such as tractors and backhoes.

[0002]

2. Description of the Related Art For example, as shown in FIG. 4, a door structure of a cabin of a tractor has a door glass 3 attached to a door frame 2 made of sheet metal, and one front and rear side of the door frame 2 is provided with a middle support column 5.
(Or the front support column 4) is rotatably supported around a vertical axis via a pivot support 6, and a weather strip 7 is provided on the outer peripheral edge.

The pivotal support 6 is formed of a hinge, and the left and right wing pieces thereof are fixed to the outer surface of the door frame 2 and the outer surface of the middle pillar 5, respectively, and the outer surface of the door frame 2 and the door glass 3 are provided. Although they are flush with the outer surface of the above, both are connected by an H-shaped rubber 9 and the H-shaped rubber 9 projects from the outer surface, so that they are not continuous surfaces.

[0004]

In the above-mentioned prior art, since the pivot support 6 is on the outer surface of the cabin, it easily rusts, and the pivot support 6 and the H-shaped rubber 9 form irregularities on the outer surface of the cabin. Therefore, dust is likely to adhere and the appearance is not good. According to the present invention, the pivot support 6 is disposed inside the outer surface of the cabin, the door glass 3 is attached to the mounting recess 8 formed on the inner periphery of the door frame 2, and the outer surface thereof is substantially the same as the outer surface of the door frame 2. It is an object of the present invention to provide a cabin door structure that can solve the above-mentioned problems of the prior art by forming a continuous surface.

[0005]

As a concrete means for solving the problems in the present invention, a door glass 3 is attached to a door frame 2 and one front and rear side of the door frame 2 is pivotally supported by a front strut 4 or a middle strut 5. In a cabin door structure in which a weather strip 7 is provided between an outer peripheral edge and a door receiving portion 10 so as to be rotatable about a vertical axis via a tool 6, the pivot support tool 6 is used to support the pivot support tool 6 and the front frame. A door glass mounting recess 8 is formed on the outer surface side of the inner periphery of the door frame 2 by being arranged inside the outer surfaces of the middle columns 4 and 5, and the door glass 3 is mounted in the mounting recess 8 and the outer surface is mounted on the door. That is, the outer surface of the frame 2 is substantially continuous.

[0006]

The pivot support 6 that can open and close the door 11 is located inside the outer surfaces of the door frame 2 and the front and center columns 4 and 5,
It is not exposed to rainwater and is not visible from the outside of the cabin. A mounting recess 8 is formed on the outer surface side of the inner periphery of the door frame 2, and the door glass 3 is mounted in the mounting recess 8. The outer surface of the door glass 3 is substantially continuous with the outer surface of the door frame 2. It is a surface, there is no protrusion between it, and the adhesion of dust is reduced.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 2 and 3, reference numeral 13 denotes a tractor with a cabin, which is directly connected to an engine, a transmission case, and the like to form a vehicle body 14, and a bonnet 15 has an operation panel 1 on a rear side thereof.
6 and the handle 17 are arranged, and the rear wheel 18 is attached to the fender 19
Covered with.

The cabin 21 is mounted on the rear portion of the vehicle body 14, and is mounted directly on the vehicle body 14 and is detachably mounted on the vehicle body 14 with the operation panel 16, the handle 17, the fender 19 and the like. There are things. The cabin 21 includes a pair of left and right front columns 4, a middle column 5, and a rear column 2.
2 and the top frame 2 connecting the upper ends of all the columns 4, 5, and 22.
3 and a roof member 24 attached to the top frame 23.

A windshield 2 is provided between the left and right front columns 4.
7, a door 11 is openably and closably arranged between the front support column 4 and the middle support column 5, a rear side glass 25 is fitted between the middle support column 5 and the rear support column 22, and a rear glass 26 is provided between the left and right rear support columns 22. Is openable and closable. 1 to 3, in the door 11, the door glass 3 is attached to the door frame 2, and the rear side of the door frame 2 is a middle strut 5 (or the front side is a front strut 4).
It is configured to be rotatably supported around the vertical axis via a pivot support 6, and to be provided with a weather strip 7 on the outer peripheral edge.

The front pillar 4, the middle pillar 5, the top frame 23 and the like have a concave door receiving portion 10 facing the outer peripheral portion of the door 11.
The weather strip 7 is formed on the door receiving portion 1
It contacts 0 and seals between them. The door frame 2 is formed by rolling a pipe material with rollers, and its outer surface is flush with the outer surfaces of the front support pillar 4, the middle support pillar 5, and the like. The outer peripheral portion is folded and formed into a double flange shape to form a mounting portion 2A, and the weather strip 7 is fitted and mounted to the mounting portion 2A.

Further, the outer peripheral surface side of the inner peripheral portion of the door frame 2 is formed in a rectangular shape to form a mounting recess 8, and the door glass 3 is fixed to the mounting recess 8 with an adhesive 30. A portion of the door glass 3 that overlaps with the door frame 2 has black masking on its inner surface. The depth of the mounting recess 8 is slightly larger than the thickness of the door glass 3, and with the adhesive 30 interposed,
The outer surface of the door glass 3 is a surface that is substantially continuous with the outer surface of the door frame 2, and there is no H-shaped rubber between them, unlike the prior art.

The middle column 5 may be made of a pipe material having a rectangular cross section, but here, a channel-shaped channel material having a U-shaped cross section is roll-processed and the weather strip 7 comes into contact with the outer side of the stepwise seal receiving portion. 31 is formed, and the inside is closed by a cover 32. The pivotal support 6 has a shape in which a hinge is deformed, and is provided in a plurality of upper and lower parts, one wing piece of which is fixed to the inner surface of the groove of the middle strut 5, and the other wing piece of which is fixed to the door frame 2. Since the wing piece rotates about the vertical axis, the notch 33 is formed in the middle strut 5.

A rear side glass 25 is fixed to the outer surface of the middle column 5 with an adhesive 34, and the rear side glass 25 and the outer surfaces of the door glass 3 and the door frame 2 are flush with each other. Therefore, the middle pillar 5 is covered with the door 11 and the rear side glass 25, and has a structure invisible from the outside. An upper portion of the rear glass 26 is pivotally supported by the top frame 23 or the rear support 22, and a lower portion of the rear glass 26 can be opened and closed rearward, is assisted in opening and closing by the gas damper 35, and can be held at a required angle.

The cabin 21 is a weather strip 7
Door frame 2, door glass 3, front and rear columns 4, 22, windshield 27, side rear glass 25
Further, the rear glass 26 and the like are substantially flat, and the unevenness of the surface is extremely small, so that dust is unlikely to adhere to the surface of the cabin 21, and even if it adheres, it is easy to wash and has a novel design.

The present invention is not limited to the above embodiment, but can be variously modified. For example, the weather strip 7 may be attached to the front strut 4 and the middle strut 5 side, and the space between the left and right rear strut 22 is narrowed so that the rear side glass 25 between the middle strut 5 and the rear strut 22 is projected outward. It may be formed on the arc glass.

[0016]

According to the present invention described in detail above, the pivot support 6
Are arranged inside the outer surfaces of the door frame 2 and the front and middle columns 4 and 5, and a door glass mounting recess 8 is formed on the outer surface side of the inner periphery of the door frame 2, and the door glass 3 is placed in the mounting recess 8. Since the outer side surface of the door frame 2 is attached to the outer side surface of the door frame 2 so as to be substantially continuous with the outer side surface of the door frame 2, the pivotal support 6 is not exposed to rainwater and rusts, and is projected at the boundary between the door frame 2 and the door glass 3. Since there is no portion and the pivotal support 6 does not project to the outer side surface of the cabin, less dust is attached and the appearance can be improved.

[Brief description of drawings]

FIG. 1 is a sectional plan view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional plan view of the cabin.

FIG. 3 is a side view of a tractor with a cabin.

FIG. 4 is a cross-sectional plan view showing a conventional technique.

[Explanation of symbols]

 2 Door frame 3 Door glass 4 Front support 5 Middle support 6 Pivot support 7 Weather strip 8 Mounting recess 10 Door receiving part 11 Door 21 Cabin 25 Rear side glass 27 Windshield

Claims (1)

[Claims] 1. A door glass (3) is attached to a door frame (2), and one of the front and rear sides of the door frame (2) is attached to a front strut (4) or a middle strut (5) via a pivot support (6). In a cabin door structure, which is rotatably supported about a vertical axis and has a weather strip (7) between an outer peripheral edge and a door receiving portion (10), the pivot support (6) is provided with a door frame (2). And front and center columns (4)
The door glass mounting recess (8) is formed on the inner side of the outer surface of (5) and on the outer surface side of the inner periphery of the door frame (2),
A door structure for a cabin, characterized in that a door glass (3) is attached to the attachment recess (8) and an outer surface of the door glass (3) is substantially continuous with an outer surface of the door frame (2).